Prepare MPT introduction for the community

[lock9]

From @igormcoelho in #694:

@rodoufu we need to prepare a tutorial on MPT for the whole community understand our proposal. We also need to make sure that issue with "other implementations" is effectively resolved.

Can I suggest using UML for this?

The Unified Modeling Language (UML) is a general-purpose, developmental, modeling language in the field of software engineering that is intended to provide a standard way to visualize the design of a system.[1]

I believe UML is the "standard" for this. I'm saying this because I saw your discussion about "how to represent it'.

[rodoufu]

Hey @igormcoelho , what do you think about it?
Should be better an introduction using the key and values on the node, to avoid collisions, as the implementation on neo-project/neo-modules#97 ?

[rodoufu]

The main question about "how to represent it" is drawing a simple and meaningful representation to give the proper understanding of how the nodes are related to each other and how they change.
I see how I can use your suggestion to represent the decisions but what I really want to show is the structure itself, I'm thinking about using a drawing with the nodes.

Another idea is to use the JSON representation, like:

Let's create a tree with the key and value (0x000001, 0x000001):
["000001","001","001"]

Now adding a new key and value (0x110002, 0x110002):
{"0":["00001","001","001"],"1":["10002","1102","1102"]}

[lock9]

@rodoufu UML is able to represent both static and dynamic visions of the system.
I found this good article here if you want to check (not very deep):
https://creately.com/blog/diagrams/uml-diagram-types-examples/

I think that you can use the communication diagram for that particular case.
A class diagram could be good to show the basic structure of the MPT.